To investigate epidermiologic trend in maxillofacial fractures. We retrospectively studied 934 patients with maxillofacial fractures between $1981{sim}1987$ and $1995{sim}1999$. The results were compared in the previous group (Group A, patients treated between $1981{sim}1987$) with those in the recent group (Group B, $1995{sim}1999$). Also, we studied 516 patient between $1995{sim}1999$ for occupation, associated injuries, treatment and complications. The sex ratio of men to women decreased (5.6 : 1 in Group A vs. 3.5 : 1 in Group B), and the largest age group was 20 to 29 years. There was the highest incidence in September and Fall. The most frequent cause of maxillofacial fracture in both Group A and B was traffic accidents. The distribution of fracture site did not change appreciably, but the frequency of midfacial fracture increased. In the recent group, the largest occupational group was salaried men, and the largest associated injuries of maxillofacial fracture was head and neck injury. Open reduction was used in 91% of the cases, and post-operation complications were infection, neurologic problem, malocclusion, and mouth opening limitation etc. Our results suggest that the clinical features of patients with maxillofacial fractures have changed during the past decade.